PrepMaticTamil Nadu GK · History & heritage
UNESCO World Heritage Sites in Tamil Nadu
On this page
Tamil Nadu has the Group of Monuments at Mahabalipuram (inscribed 1984), the Great Living Chola Temples (1987, extended 2004), the Nilgiri Mountain Railway (part of the Mountain Railways of India, 2005), part of the Western Ghats (2012) and Senji (Gingee) Fort, which is one of the twelve forts in the Maratha Military Landscapes of India (2025). The list below is as of the July 2025 session of the UNESCO World Heritage Committee; check the UNESCO site for any later inscription.
The list at a glance
| Site | Type | Year | Where in Tamil Nadu | Key fact |
|---|---|---|---|---|
| Group of Monuments at Mahabalipuram | Cultural | 1984 | Chengalpattu district, on the coast | Pallava monuments of the 7th and 8th centuries |
| Great Living Chola Temples | Cultural | 1987 (extended 2004) | Thanjavur, Gangaikonda Cholapuram, Darasuram | Three Chola-period temples still in worship |
| Mountain Railways of India (Nilgiri Mountain Railway) | Cultural | 2005 (extension) | Mettupalayam to Udhagamandalam | Rack-and-pinion railway opened in 1908 |
| Western Ghats | Natural | 2012 | Tamil Nadu's Western Ghats | Biodiversity hotspot, shared with Kerala, Karnataka and Maharashtra |
| Maratha Military Landscapes of India (Senji Fort) | Cultural | 2025 | Villupuram district | Gingee is the only one of the twelve forts outside Maharashtra |
Group of Monuments at Mahabalipuram
The Pallava kings Narasimhavarman I (Mamalla) and Narasimhavarman II (Rajasimha) created the Mamallapuram monuments. They include:
- the Shore Temple, a structural granite temple from the time of Rajasimha;
- the Five Rathas (Pancha Pandava Rathas), monolithic temples cut from single rocks;
- the Arjuna's Penance (Descent of the Ganges) bas-relief;
- cave temples such as the Varaha cave and mandapas such as the Krishna Mandapa.
The site was inscribed in 1984, among the first Indian entries. See ancient dynasties of Tamil Nadu for the Pallava context.
Great Living Chola Temples
| Temple | Place | Built by | Note |
|---|---|---|---|
| Brihadisvara (Brihadeeswarar) | Thanjavur | Rajaraja I, completed 1010 | Inscribed 1987; vimana about 66 m high |
| Gangaikonda Cholisvaram | Gangaikonda Cholapuram, Ariyalur district | Rajendra I | Added in 2004; marked his Ganga victory |
| Airavatesvara | Darasuram, near Kumbakonam | Rajaraja II | Added in 2004; 12th century |
They are called "living" because worship continues in them. The first listing in 1987 covered only the Thanjavur temple, and the other two were added as an extension in 2004. More detail on all three is in important temples of Tamil Nadu.
Nilgiri Mountain Railway
The line climbs from Mettupalayam through Coonoor to Udhagamandalam (Ooty) over about 46 km using the Abt rack-and-pinion system, with the full line opened in 1908. It was added to the Darjeeling Himalayan Railway's listing (inscribed 1999) in 2005, and Kalka-Shimla joined in 2008. That is why the property is called "Mountain Railways of India".
Western Ghats and Senji Fort
The Western Ghats were inscribed in 2012 as a serial natural property with 39 component parts across Karnataka, Kerala, Tamil Nadu and Maharashtra. In July 2025, the Maratha Military Landscapes of India were inscribed. Eleven of the twelve forts are in Maharashtra, and the twelfth, Senji (Gingee) Fort in Villupuram district, is in Tamil Nadu.
Do not confuse these with other UNESCO tags
- The Nilgiri Biosphere Reserve (the first in India, 1986), the Gulf of Mannar (2001) and the Agasthyamalai (2016) biosphere reserves are in UNESCO's Man and the Biosphere network, not on the World Heritage List.
- Chennai joined the UNESCO Creative Cities Network as a City of Music in 2017. That is a network title, not a World Heritage listing.
- Great Living Chola Temples is one property with three temples. If a question says "three World Heritage temples", it means these.
Frequently asked questions
How many UNESCO World Heritage Sites are in Tamil Nadu?
It depends on how you count parts of serial sites. The distinct properties with a Tamil Nadu component are Mahabalipuram, the Great Living Chola Temples, the Nilgiri Mountain Railway, the Western Ghats and Senji Fort. The key exam facts are the names, years and builders.
Which was the first World Heritage Site in Tamil Nadu?
The Group of Monuments at Mahabalipuram, inscribed in 1984. The Brihadisvara Temple at Thanjavur followed in 1987.
Which Chola temples are UNESCO sites?
The Brihadisvara Temple at Thanjavur, the Gangaikonda Cholisvaram Temple at Gangaikonda Cholapuram and the Airavatesvara Temple at Darasuram.
Is Keezhadi a World Heritage Site?
No. Keezhadi is an excavation site and is not inscribed on the World Heritage List. See archaeological sites of Tamil Nadu.
Which World Heritage railway is in Tamil Nadu?
The Nilgiri Mountain Railway between Mettupalayam and Udhagamandalam, listed in 2005 as an extension of the Mountain Railways of India.
Official sources
- UNESCO World Heritage List: India: property pages with inscription years.
- Archaeological Survey of India: World Heritage monuments in its care.
- Revise the topic with the TNPSC Tamil Nadu history, culture and heritage guide.
UNESCO may add sites at its yearly session, so check the World Heritage Centre website before an exam.
Find your weak TNPSC units before the exam does
Take a free TNPSC assessment on PrepMatic. It shows where you stand across General Tamil, General Studies and Aptitude, then builds a day-by-day study plan and mock tests focused on your weak subjects.
Start free assessment →Free forever plan · No credit card · 2-minute setupRelated
- Important temples of Tamil NaduMajor temples of Tamil Nadu in one table: Brihadeeswarar, Meenakshi, Srirangam, Chidambaram and Rameswaram, with builders, deities, places and exam facts.
- Ancient dynasties of Tamil NaduCheras, Cholas, Pandyas and Pallavas in one revision table: capitals, ports, emblems, key rulers and the temples, battles and records TNPSC asks about.
- Archaeological sites of Tamil NaduKeezhadi, Adichanallur, Arikamedu, Sivakalai, Kodumanal, Attirampakkam and more: where each site is, what was found, and how to answer it in TNPSC.
- Tamil Nadu firstsTamil Nadu firsts for GK: first classical language, first woman legislator, first Bharat Ratnas, first biosphere reserve, first corporation and Nobel laureates.
- TN history and cultureTNPSC Tamil Nadu history, culture and heritage: the Unit VI syllabus, Sangam age to social reform, key sites and leaders, and a study order for Group 4 and Group 2.
More in History & heritage
- Social reformers of Tamil NaduTamil Nadu's social reformers in one table: Periyar, Vallalar, Iyothee Thass, Muthulakshmi Reddy and others, with movements, dates and the journals they ran.
- Sangam literature worksAll Sangam literature works in one list: the eight anthologies, ten idylls and 18 minor works, with authors, themes and the poets TNPSC asks about.
- Freedom fighters of Tamil NaduFreedom fighters of Tamil Nadu from Puli Thevar and Kattabomman to V. O. Chidambaram Pillai and Rajaji, with dates, places and the events TNPSC asks about.
- Formation of Tamil NaduHow Madras Presidency became Madras State and then Tamil Nadu: Andhra separation 1953, States Reorganisation 1956, renaming on 14 January 1969, Chennai 1996.
- Dravidian movement timelineA dated timeline of the Dravidian movement in Tamil Nadu: Justice Party 1916, Self-Respect Movement 1925, Dravidar Kazhagam 1944, DMK 1949, AIADMK 1972.